Hah, well, wouldn't have expected to see this on Hacker News all these years later.

This got folded up into GTK+ years back as the GTK Inspector, so we dropped further development on it. They could do more with this being part of GTK+ than we could as a loadable module.

I also don't really work on GTK-based applications anymore, so it didn't make sense to continue development when I no longer had a vested interest in building new features for it. Instead, I build Review Board (https://www.reviewboard.org -- code review product) full-time now. Takes about 156% of my time.

The little Parasite bug lives on, though, as the mascot for Splat, a bug tracker we maintain for our needs (and might turn into a product someday). See https://hellosplat.com/tour/ for more drawings of the little guy.